Communication apparatus, communication method, and multi-hop relay system
AssigneeSonas, Inc.
InventorsMakoto Suzuki, Sotaro Ohara
Life of this patent
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Abstract
A communication apparatus in a multi-hop relay system in which a packet is transmitted and received using a flooding method in a first flooding slot and a second flooding slot each including a plurality of sub-slots, the communication apparatus performs: switching a frequency channel to be used to transmit and receive a packet between a first sub-slot and a second sub-slot in the first flooding slot; and not switching the frequency channel to be used to transmit and receive a packet within the second flooding slot, but switching the frequency channel to be used to transmit and receive a packet between a plurality of the second flooding slots.
Claims12
A communication apparatus in a multi-hop relay system in which a packet is transmitted and received using a flooding method in a first flooding slot and a second flooding slot each including a plurality of sub-slots, the communication apparatus comprising:
- channel control unit configured to:
- switch a frequency channel to be used to transmit and receive a fixed- length packet, which is a synchronization packet, between a first sub-slot and a second sub-slot in the first flooding slot;
- and
- not switch the frequency channel to be used to transmit and receive a variable-length packet, which is a data packet, within the second flooding slot, but switching the frequency channel to be used to transmit and receive a variable-length packet between a plurality of the second flooding slots.
A communication method for a multi-hop relay system in which a packet is transmitted and received between nodes using a flooding method in a first flooding slot and a second flooding slot each including a plurality of sub-slots,
- the communication method comprising:
- switching a frequency channel to be used to transmit and receive a fixed-length packet, which is a synchronization packet, between a first sub-slot and a second sub-slot in the first flooding slot;
- and
- not switching the frequency channel to be used to transmit and receive a variable-length packet, which is a data packet, within the second flooding slot, but switching the frequency channel to be used to transmit and receive a variable-length packet between a plurality of the second flooding slots.
A multi-hop relay system in which a packet is transmitted and received between nodes using a flooding method in a first flooding slot and a second flooding slot each including a plurality of sub-slots, the multi-hop relay system comprising a communication apparatus in a multi-hop relay system comprising:
- channel control unit configured to:
- switch a frequency channel to be used to transmit and receive a fixed- length packet, which is a synchronization packet, between a first sub-slot and a second sub-slot in the first flooding slot;
- and
- not switch the frequency channel to be used to transmit and receive a variable-length packet, which is a data packet, within the second flooding slot, but switching the frequency channel to be used to transmit and receive a variable-length packet between a plurality of the second flooding slots.
Dependencies are inferred from the claim text.